100121331032 has 32 divisors (see below), whose sum is σ = 190813708800. Its totient is φ = 49240951200.

The previous prime is 100121331031. The next prime is 100121331043. The reversal of 100121331032 is 230133121001.

It is a self number, because there is not a number n which added to its sum of digits gives 100121331032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121331031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40319 + ... + 449297.

It is an arithmetic number, because the mean of its divisors is an integer number (5962928400).

Almost surely, 2^100121331032 is an apocalyptic number.

It is an amenable number.

100121331032 is a deficient number, since it is larger than the sum of its proper divisors (90692377768).

100121331032 is a wasteful number, since it uses less digits than its factorization.

100121331032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409487 (or 409483 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100121331032 its reverse (230133121001), we get a palindrome (330254452033).

The spelling of 100121331032 in words is "one hundred billion, one hundred twenty-one million, three hundred thirty-one thousand, thirty-two".